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Digital Linear Power Supplies
Extended Warranty
Program
SM
PSU300 Series
Starts at
$
470
⻬ -30 to 30 Vdc
⻬ True Constant Voltage
and Constant Current
Performance
⻬ 12-Bit D/A Converter
⻬ 2 x 16 Dot-Matrix Backlit
LCD; Voltage and Current
are Displayed
Simultaneously
⻬ Software Calibration
⻬ Sophisticated
Cooling System
⻬ RS232 Output
⻬ Beeper-Overload
Warning and Status
Change Indication
⻬ Up/Down Key for
Easy Setting
⻬ Numeric Keyboard
for Direct Setting
(PSU305 Only)
⻬ Single Channel,
Dual Range
⻬ Auto-Ranging
(PSU301, PSU302 Only)
⻬ Three Channels—
2 Adjustable and 1 Fixed
Output: 5V or 3.3V
(PSU304, PSU305 Only)
The PSU300 Series comprises
power supplies with voltages from
-30 to 30 Vdc, power levels from
30 to 165 W, and constant current
from 0 to 3 A. Standard features
include RS232 communications
output, LCD, sophisticated cooling
system, and software calibration.
OMEGACARESMextended
warranty program is
available for models shown
on this page. Ask your
sales respresentative for full
details when placing an
order. OMEGACARE
covers parts, labor and
equivalent loaners.
SM
PSU304, $639, shown
smaller than actual size.
PSU305,
$790, shown
smaller than
actual size.
MOST POPULAR MODELS HIGHLIGHTED!
To Order (Specify Model Number)
Model No. Price Voltage Wattage
PSU301 $470 0 to 30 30
PSU304 639 0 to 30 70
PSU305 790 -30 to 30 165
Comes complete with 1.5 m (5') power cord, fuse and operator’s manual.
Ordering Examples: PSU301, 0 to 30 Vdc linear power supply, $470. OCW-3, OMEGACARE
extends standard 1-year warranty to a total of 4 years ($117), $470 + 117 = $587.
Recommended Reference Book: The Electronics Handbook
EE-2451, $180
See Section Y For Additional Books
Q-X
SM
,
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PSU301, $470.
PSU300 Series,
shown smaller
than actual size.
Specifications
Model PSU301 PSU304 PSU305
Max Output Power 30 W 70 W 165 W
Outut Voltage HIGH LOW
0 to 15 V 0 to 30 V 0 to 30 V/ 0 to 30 V/
Setting Resolution 10 mV 10 mV 10 mV 10 mV
Max Output Voltage 16 V 32 V 32/-32 V 32/-32 V
Dual Tracking —— 0 to ±30 V 0 to ±30 V
Tracking Deviation —— ±20 mV ±20 mV
Output Current 0 to 2 A 0 to 1 A 0 to 1 A/ 0 to 2.5 A/
Setting Resolution 1 mA 1 mA 1 mA 1 mA
Max Output Current 2.4 A 1.2 A 1.2 A/-1.2 A 3 A/-3 A
Dual Tracking — 0 to ±1 A 0 to ±2.5 A
Tracking Deviation — ±2 mA ±5 mA
CONSTANT VOLTAGE CHARACTERISTICS (AT RATED OUTPUTS)
Line Regulation — 1 mV 1 mV
(10% AC) 5 mV 5 mV
Load Regulation — 2 mV 2 mV
(100% Load Change) 10 mV 10 mV
Ripple/Noise rms — 1.5 mVrms
(10 Hz to 20 mHz) 2 mVrms 2 mVrms
Ripple/Noise Peak — 10 mV p-p 10 mV p-p
(10 Hz to 20 MHz) 20 mV p-p 20 mV p-p
Transient Response — 200 s typical 200 s typical
Temp Coefficient — 100 ppm/ºC typical
CONSTANT CURRENT CHARACTERISTICS (AT RATED OUTPUTS)
Line Regulation
(10% AC) — 15 mA typical 15 mA typical
Load Regulation
(100% Load Change) — 10 mA typical 10 mA typical
Ripple/Noise rms 1 mA rms 1 mA rms
(10 Hz to 20 MHz) — typical typical
Ripple/Noise Peak 5 mA p-p 5 mA p-p
(10Hz to 20MHz) — typical typical
Temp Coefficient — 200 ppm typical
Display 16 character x 2 line backlit LCD; front-panel status indicator with beeper
Voltage Accuracy* ±0.2% rdg + 2 digits
Current Accuracy* ±0.5% rdg + 5 digits
Common Mode Voltage ±240 Vdc
Temp Range
Dimensions (W x H x L)
Weight Approx. 4.5 kg Approx 5.4 kg Approx 8.2 kg
Cooling Forced air
RS232 Interface Standard, port configuration: asynchronous 2400 baud, 8 data bits, 1 stop bit, no parity
RS232C DCE Interface 9-pin D-sub connector
Power 115 Vac ±10% 47 to 63 Hz, 47 to 63 Hz, 47 to 63 Hz,
* For output of less than 5% of rated output, add 5 digits to the accuracy specification.
Operating: 0 to 40ºC (32 to 104ºF), less than 80% RH; Storage: -45 to 75ºC (-49 to 167ºF), less than 80% RH
221 x 86 x 300 mm (8.7 x 3.4 x 11.8")
(10 lb) (12 lb) (18 lb)
1 A, 2 A, 2 A,
approx 250 W approx 110 W approx 250 W
PSU304, $639.
PSU305, $790.
0 to -30 V 0 to -30 V
fixed 5 V fixed 3.3 V/5 V
0 to -1 A 0 to -2.5 A
2 A 3 A
CL = 2.2 A CL = 3.3 A
N
213 x 132 x 399 mm
(8.4 x 5.2 x 15.7")
Q-X
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